View clinical trials related to HIV Infections.
Filter by:This pilot study will assess the feasibility of using heavy water as a safe 'tracer' for biomarker studies of diseases of the brain and spinal cord, that, together, are also called the central nervous system (CNS). Heavy water, also called deuterated water or D20, is the same as normal drinking water except the hydrogen atoms have been replaced by deuterium, a naturally occurring isotope of hydrogen. In particular, this study will use heavy water to define: 1) The rate of immune cell proliferation (growth) in the cerebrospinal fluid (CSF) compared to blood. This study will be examining a particular type of immune cell called T lymphocytes. 2) This study will also examine selected molecules generated by nerve cells of the CNS to understand their rate of secretion and turnover in healthy control participants, HIV-1-infected participants and participants with a non-HIV-related neurodegenerative disease such as Parkinson's disease (PD). This study will involve the administration of heavy water orally for either seven days, 12 days or six weeks. Measurements will be taken by lumbar puncture (LP, also known as a spinal tap). Blood (approximately five tablespoons per visit) will also be obtained at each of the lumbar puncture appointments. If this method can be used to establish the rates of immune cell turnover and the production rates of neuronal molecules using cerebrospinal fluid, it will provide unique data that is important to understand chronic neurodegenerative conditions, like PD, and to measure responses to targeted therapies. Hypothesis: 1. D2O, administered orally, can be used to measure the proliferation rates of CSF T cells (and, eventually, of their major phenotypic subsets). 2. D2O can be used to assess the turnover and production rates of CNS constituents that are normally or pathologically shed or secreted into the CSF, including (eventually): cargo molecules transported specifically in neurons in the CNS, such as chromogranin-A and -B, neuregulin-1 (specifically the extracellular secreted ectodomain of neuronal differentiation factor (NDF) isoform type α1, α2, β1, and the acetylcholine receptor inducing activity isoform (ARIA), secreted amyloid precursor protein (sAPP), alpha-synuclein; and APP metabolites amyloid beta (Aβ) 41 and 42.
The study of early, acute HIV infection is critical to understanding subtype-specific pathophysiologic differences, since up to 50% of acute HIV infections may be incapacitating. This study will establish whether the patient population of the Thai Red Cross Anonymous Clinic is suitable for the study of early, acute infection.
The purpose of this study is to determine if Maraviroc administration can decrease IRIS incidence in HIV infected patients initiating ARV therapy.
This study will test a system of nursing telephone support to see if it improves adherence to antiretroviral therapy (ART) in at-risk, treatment-experienced people.
- Context: Mothers living with HIV (MLH) and their children face predictable challenges: maintaining physical and mental health, parenting while ill, and addressing HIV-related stressors. - Objective: To evaluate the efficacy of a family-based intervention over time; to contrast the life adjustments of HIV-affected families and their non-HIV-affected neighbors in the current treatment era. - Design: Randomized controlled trial of MLH and a longitudinal comparison of MLH to a neighborhood cohort using random effect regression. - Participants and Intervention: MLH (n = 339) and their school-age children (n = 259) were randomly assigned to receive 1) an intervention of 16 sessions in a cognitive-behavioral, small-group format; or 2) control. MLH and their children were compared to non-HIV-affected families recruited at shopping markets. Participant retention was high: 84% at 6 months, 83% at 12 months, and 78% at 18 months. - Main Outcome Measures: Family functioning and conflict, mental and physical health, sexual behavior, and substance use.
The trial aim is to ascertain what, if anything, needs to be combined with a boosted protease inhibitor (bPI) backbone in second-line therapy in order to maximize the chance of a good clinical outcome following WHO-defined failure on a first-line nucleoside reverse transcriptase inhibitor (NRTI) and NNRTI-containing regimen with probable extensive NRTI and NNRTI resistance mutations.
High levels of HIV infection within blood monocyte/macrophages (a type of white cells in the bloodstream) increases risk of dementia in HIV-infected individuals. Maraviroc (Selzentry) is a HIV medication that works by blocking the entry of HIV in cells including monocytes/macrophages that use a receptor called CCR5. The study hypothesis is that the addition of Maraviroc to a HIV antiretroviral regimen in HIV-infected individuals with high levels of HIV-infected monocyte/macrophages will lead to a decrease in the levels of infected monocyte/macrophages and to decrease in brain inflammation as studied by magnetic resonance spectroscopy (MRS, a form of MRI study).
Background Recently, the CDC issued recommendations calling for HIV screening for patients aged 13-64, when the individual accesses the health care system. For many patients, the emergency department (ED) is the primary or only contact point for health care. The rapid HIV test can be done as a point of care test in the ED. Study Objectives A. Primary: 1. To initiate HIV testing in the Baystate ED. B. Secondary: 1. To estimate the resources involved in initiating a rapid HIV testing program in the ED. 2. To describe the process of initiating a rapid HIV testing program. 3. To compare the yield of testing for HIV in patients with known HIV risk factors compared to those without known risk factors. 4. To describe the characteristics of the population tested for HIV in the ED. 5. To determine the number of patients who declined testing and the reasons for declining testing. 6. To analyze ED staff attitudes re: HIV rapid testing in the ED. Methods A trained HIV Educator/counselor will approach patients in the ED to offer free rapid HIV testing, at a time they are not currently engaged with the health care provider. Study informed consent and HIV consent will be obtained prior to testing. The HIV educator will obtain demographic and clinical information on the enrolled subjects including prior HIV testing and HIV risk factors. Patients testing negative will be counseled regarding HIV risk reduction strategies. Patients with an initial positive rapid HIV test will have blood drawn for confirmation (Western Blot) and will be referred to an HIV clinic for follow-up and treatment. Additionally, to assess acceptability of rapid testing in the ED, a brief anonymous electronic survey will be conducted of health care providers in the ED prior to starting this pilot program and following the program. Data Analysis The yield of testing will be calculated as will the seroprevalence of those tested. Among patients who decline HIV testing but agree to study participation (sign consent form), the number refusing testing will be recorded and reasons for refusing will be analyzed. The yield of testing will be compared in patients with to those without known HIV risk factors.
Rosuvastatin belongs to a class of medications commonly called "statins" which are medications given for high low density lipoprotein (LDL) 'bad' cholesterol to prevent atherosclerosis (hardening of blood vessels) and lower risk of heart attacks and other circulation problems. Recent studies in the general non-HIV infected population have shown that the beneficial effect of statins in preventing circulation problems is larger than would be expected from lowering of LDL-cholesterol alone. It has been suggested that the additional beneficial effect of statins may be due to the anti-inflammatory effect of statins. The risk of heart attacks and other circulation problems may be high in HIV infected individuals. This may be due to the inflammatory stress effects of HIV. The main purpose of the study is to see if rosuvastatin will have a beneficial effect on the circulatory system in HIV infected individuals even in those who do not have high LDL cholesterol levels. Therefore, in HIV-infected individuals with normal or low LDL cholesterol levels but with evidence of low HDL cholesterol levels which may be a sign of low grade inflammation, the study will look at whether 3 months of rosuvastatin will lead to improvement in brachial artery flow-mediated dilatation (FMD), a marker of early atherosclerosis (hardening of the blood vessels).
This study is a pilot study examining the effect of extended-release niacin (Niaspan ®) on flow-mediated vasodilation (FMD) of the brachial artery, among human immunodeficiency virus (HIV)-1 infected individuals with low high density lipoprotein (HDL). Brachial artery diameter will be measured by high-resolution ultrasound at entry and week 12 of study. The primary comparisons will be change in FMD from baseline to 12 weeks within each of the two arms. The second specific aim will be to investigate the proportion of the effect of extended-release niacin on other known cardiovascular markers.